Anion chemistry in energy storage devices

Research output: Journal Publications and ReviewsRGC 21 - Publication in refereed journalpeer-review

26 Scopus Citations
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Detail(s)

Original languageEnglish
Journal / PublicationNature Reviews Chemistry
Online published14 Jun 2023
Publication statusOnline published - 14 Jun 2023

Abstract

Anions serve as an essential component of electrolytes, whose effects have long been ignored. However, since the 2010s, we have seen a considerable increase of anion chemistry research in a range of energy storage devices, and it is now understood that anions can be well tuned to effectively improve the electrochemical performance of such devices in many aspects. In this Review, we discuss the roles of anion chemistry across various energy storage devices and clarify the correlations between anion properties and their performance indexes. We highlight the effects of anions on surface and interface chemistry, mass transfer kinetics and solvation sheath structure. Finally, we conclude with a perspective on the challenges and opportunities of anion chemistry for enhancing specific capacity, output voltage, cycling stability and anti-self-discharge ability of energy storage devices. © Springer Nature Limited 2023.

Research Area(s)

  • SOLID-ELECTROLYTE INTERPHASE, DUAL-ION BATTERY, LITHIUM-ION, POLYMER ELECTROLYTE, CATHODE MATERIAL, ELECTROCHEMICAL INTERCALATION, LIQUID ELECTROLYTE, CYCLING STABILITY, SOLVATION SHEATH, DENDRITE-FREE